I've been in the automotive restoration business for years now and one of my major gripes about reproduction parts is that they don't always fit correctly. Not so with these door seals! This is easily the best made set of rubber door seals I have ever used. The upper part of the door has a channel that a lip on the seal must fit into and it fits perfectly! Plus the lower part of the seal is retained by small plastic pins, each of which was correctly positioned. Bottom line? I will look for door seals made by this manufacturer for all of my project vehicles from now on!!